I love Twitter but normally hate seeing auto-generated tweets. But I love making auto-generated tweets!
To avoid hypocrisy on my personal @sillygwailo account, I created the @justagwailo account to post tweets generated from pressing a button somewhere else. (I don't believe in recurring tweets written by robots. For example, I don't post any "daily summary" tweets.) Tweets that go to the @justagwailo are generally written by a robot. Usually following a template but with dynamic content. There are some scheduled or repeating tweets going to the automated ephemera account (I use Cheap Bots, Done Quick! to perodically highlight some of my social media) but almost always, I have to somehow, and for each one, request that the tweet be made.
An alphabetical list of services that post to the @justagwailo account:
Untappd checkins (beers)
Disqus (liking a post or comment)
Goodreads book reading progress
The occasional Pinboard bookmark
ifttt.com (If This Then That, and only because the services themselves don't do it 'natively'):
MetaFilter likes (via RSS)
Flickr favorites (still true? Yes, still true)
MLB At the Ballpark when attending a game
Reading.am "Yep" (which is pretty much anything I send that way)
The rare auto-tweets that go to @sillygwailo:
Foursquare checkins - mainly because the Foursquare profile URL is tied to your Twitter handle. Very rare. I can't remember the last time I did it.